Hrytsuliak H. Agrochemical effectiveness of sewage sludge for energy willow cultivation on sod-podzolic soils of Pеredcarpathia

Object - the processes, physical, chemical, agrochemical and biological properties that characterize nutrient regime and biological state of soil, performance of energy willow for the use of sewage sludge and composts produced on its basis. Purpose - to establish agrochemical efficiency of sewage sludge for application to energy willow on sod-podzolic soil deposits and their impact on the ecological status and chemical composition of crops. Methods - field - to determine the efficiency of agrochemical sewage sludge for energy willow cultivation on sod-podzolic soils; Laboratory: chemical - to determine the chemical composition of the soil and willow energy; microbiological - for the assessment of a complex microbiological soil; current - to assess crop productivity, economic and energy efficiency of different systems fertilization; statistical - to assess the level of fertilizer use over a long period and interaction factors studied in the research. Theoretical results - the theoretical going is worked out near the decision ofproblem of fertilizer of willow power on sod-podzolic soils of Precarpathia, that are based on determination of optimaldoses of bringing of sediment of effluents in form compost staking into account agrochemical, economic and power efficiency for providing of burst performance of this culture. Conformities to law of change of agrochemical, physical andchemical properties of soil and biological activity are setunder act of carrying away of sediment of effluents. Equalization of regression is expected, that allows to setdependence of content of heavy metals in sediment ofeffluents depending on an expiration date. It is set that sediment of effluents is the considerable resource of additionto the supplies of energy in soil, by the source of organic substance and elements of mineral feed for plants. Practical results - to investigated the chemical composition of sewage sludge and installed a relatively high content of nutrients that can be used directly as organic fertilizer and material for compost. It was developed the practical recommendations on the use of sewage sludge in the form of straw composts for high yield energy willow on sod-podzolic gley soils. It is possible the use of sewage sludge in doses of 40 - 80 t / ha directly with silt cards sewage treatment plants in planting willow energy, but given the environmental threats, it is advisable to make compost on its base with the addition of straw at a dose of 40 - 60 t / ha for intensive accumulation of dry matter willow energy. Adding compost can improve soil organic matter and reduce the content of heavy metals in sod-podzol soils compared with the introduction of fresh sewage sludge. Novelty - first established agrochemical efficiency of sewage sludge and resolve the issue of environmentally sound its use as fertilizer under willow energy on the Precarpathian sod-podzolic soils on the basis of integrated soil and agro-chemical and agro-ecological research performance indicators agrocenosis, economic and energy assessments; it was improved the fertilizer system of willow energy for the effects of sewage sludge and composts produced on its basis in agrochemical and agro-ecological condition and phytotoxicity sod-podzolic soil character transformation in its organic matter dynamics of humus content, change it fractionally-group composition and biological activity; further it was developed the doctrine of features using local raw materials for fertilizer as a source of organic matter and mineral nutrients in agricultural production. Degree of application - the results of research used during the execution of the Ivano-Frankivsk branch of SI "Institute for Soil Protection of Ukraine" design and exploration work on ecologically safe methods of application of sewage sludge on the Precarpathians sod-podzolic soils that are depleted in organic matter and put into production on the area of 18.6 hectares in the entrepreneur "Stepan Melnychuk" village Turka, Kolomyia district, Ivano-Frankivsk region. Some provisions of the thesis used in the educational process in teaching subjects "Chemistry with the fundamentals of biogeochemistry", "Geochemistry of Environment" on specialty "Applied ecology" Ivano-Frankivsk College LNAU. By research received a patent for utility model "Method of disposal of sewage sludge". The field is agriculture.